New, more stringent hospital guidelines for treating Ebola patients will require full body coverings and mandate that health-care workers be monitored while putting on and taking off protective garb, a top U.S. health official said.

Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases, which is part of the National Institutes of Health, said the new guidelines will be “much more stringent” and require that no skin be exposed.